DA0-001 · Question #102
Which one of the following is a measure of dispersion?
The correct answer is A. Variance. Variance is a statistical measure that quantifies how spread out a set of data points are from their mean.
Question
Which one of the following is a measure of dispersion?
Options
- AVariance.
- BMode.
- CMedian.
- DMean.
How the community answered
(38 responses)- A92% (35)
- B5% (2)
- D3% (1)
Why each option
Variance is a statistical measure that quantifies how spread out a set of data points are from their mean.
Variance measures the average of the squared differences from the mean, indicating the extent to which individual data points in a dataset deviate from the average, which directly quantifies dispersion.
Mode is a measure of central tendency, representing the most frequently occurring value in a dataset, not the spread of data.
Median is a measure of central tendency, representing the middle value in a sorted dataset, not the spread of data.
Mean is a measure of central tendency, representing the average of all values in a dataset, not the spread of data.
Concept tested: Measures of dispersion in statistics
Source: https://en.wikipedia.org/wiki/Variance
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